Analog Devices HMC881A Monolithic Microwave Integrated Circuit (MMIC) Low-Pass Filter features a user-selectable cutoff frequency. The cutoff frequency can be varied from 2.4GHz to 4GHz by applying a single analog tuning voltage between 0V and 14V. This low-pass filter provides a low 3dB insertion loss, 16.5dB return loss and 1.35×f3dB stopband attenuation of > 20dB. This tunable filter can be used as a much smaller alternative to physically large switched filter banks and cavity tuned filters. The HMC881A has excellent microphonics due to the monolithic design and provides a dynamically adjustable solution in advanced communications applications. The low-pass tunable filter is packaged in a RoHS compliant 5mm×5mm LFCSP package.
Amplitude settling time: 200ns (typical)
Wideband rejection: ≥ 35dB
Single-chip replacement for mechanically tuned designs
RoHS compliant, 32-lead, 5mm×5mm LFCSP package
Testing and measurement equipment
Military radar and electronic warfare/electronic countermeasures (ECMs)
Satellite communication and space
Industrial and medical equipment
Functional Block Diagram
Associated Development Tool
Analog Devices Inc. EV1HMC881ALP5 Evaluation Kit
Designed to help engineers evaluate the HMC881A, an MMIC low-pass filter.